Beyond Reliable EV Charging Systems

Electric Vehicle Charging

Critical to the adoption of electric vehicles is the development of charging infrastructure. NN Inc.’s precision machining, stamping, and injection molding capabilities enable us to provide essential components required in electric vehicle chargers. This includes machined terminals used in high-voltage charger plug assemblies, stamped terminals for power transfer and data signal connectors, as well as injection-molded components for insulation and assemblies.

Electric Vehicle Charging What We Build

Machined terminal, stamped terminals and injection molded components used in electric vehicle charger.

Female Terminals

Female Terminals

Female Terminals

Male Terminals

Male Terminals

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Machined Terminals


NN Inc.’s precision machining capabilities are ideally suited for manufacturing robust terminals used in charging electric vehicles. We specialize in producing both female and male terminals for charging adapters. Our machined terminals are crafted from copper, ensuring durability and reliability.

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Terminal Lead Frame

Stamped Female Terminal

Compliant Pin

Lead Frames

Lead Frames

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Stamped Terminals & Lead Frames


Power and battery management system connections play a crucial role in electric vehicle charging systems. Stamped terminals offer a cost-effective solution for creating connectors capable of efficiently and safely transferring power and data.

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Molded Fuse Tray

Molder Pin Connector Assembly

Molded Housings

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Injection Molded Components


NN Inc.’s precision molding capabilities, including over-molding and insert-molding, enable us to produce a wide range of components for electric vehicle chargers. These components include component trays, connector assemblies, and other housings.

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Over Molded Busbars

Stamped Busbars

Stamped Busbars

Stamped Busbars

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Busbars


Stamped bus bars play a critical role in facilitating the efficient flow of electricity throughout systems. They are utilized in various devices to distribute high-voltage electricity, particularly in tight spaces where the use of wires and connectors is impractical. Additionally, over-molded bus bars provide further versatility and functionality in such applications.

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How We Build

NN Inc. possesses extensive engineering experience in precision machining, stamping, and injection molding, making us well-suited for the manufacturing of terminals, shielding, busbars, and molded components used in electric vehicles and charging infrastructure.

Precision Machining Capabilities


  • CNC Sliding Headstock
  • CNC Fixed Stock
  • Cam Automatic Multi-Spindle
  • CNC Multi-Spindle
  • Rotary Transfer Machining
  • OD Toler. +/- 0.010 mm
  • ID Toler. +/- 0.010 mm
  • Concentricity: 0.020mm
  • Angular Position 0.050mm
  • OD Size Range 8 – 50mm
  • Length Range: 60 – 170mm

Precision Stamping Capabilities


  • Progressive die Stamping
  • Press tonnage from 20 to 330 tons
  • Material thickness 0.05mm to 6.35mm
  • Copper Alloys
  • Aluminum Alloys
  • Carbon Steel
  • Stainless Steel
  • Plated and Selective Plated

Quality Capabilities


  • Metrology Equipment
    • Optical Scanners
    • Precision Runout
    • Surface Finish Profilometer
    • Custom Hard Gaging
  • Automated inspection systems
  • Quality Certifications
    • IATF-16949:2016
    • ISO 9001:2015
    • ISO 14001:2015

Precision Injection Molding Capabilities


  • 15 to 500 tons molding press
  • Over-molding
  • Insert molding
  • Ultra-sonic welding
  • Inkjet and pad printing
  • Nylon HTN
  • Polyester
  • ABS and ABS blends
  • Acrylic, Polycarbonate
  • PEEK, PPS LCP, PES PEI, PARA, PSU, PPA, PAI

Secondary Operation Capabilities


  • Hard Turning
  • CNC Chucker
  • CNC Milling
  • ID Honing
  • Diamond Bore Sizing
  • System Assembly
  • Ultrasonic Cleaning
    • Particle Counting
    • Gravimetric Analysis
  • Heat treating
  • Induction Heat Treating

Contact Us and See What We Can Create Together

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